如何使用XNA绘制动态网格

Question

我试图使用XNA框架绘制网格，这个网格应该有一个固定的维度，在XNA的执行过程中，但应该给用户提前定制它的机会启动游戏页面（我正在用silverlight/xna模板构建我的应用程序）。

有没有人有如何实现这一目标的建议？

谢谢

Answer 1

ContentManager contentManager; 
    GameTimer timer; 
    SpriteBatch spriteBatch; 
    LifeGrid life; 


    int tileSize = 32; 
    Vector2 position = Vector2.Zero; 
    Texture2D gridTexture; 
    int[,] map; 

    public GamePage() 
    { 
     InitializeComponent(); 

     // Get the content manager from the application 
     contentManager = (Application.Current as App).Content; 

     // Create a timer for this page 
     timer = new GameTimer(); 
     //timer.UpdateInterval = TimeSpan.FromTicks(333333); 
     timer.UpdateInterval = TimeSpan.Zero; 
     timer.Update += OnUpdate; 
     timer.Draw += OnDraw; 
     List<Position> p = new List<Position>(); 
     p.Add(new Position(1,1)); 
     p.Add(new Position(1,4)); 
     p.Add(new Position(1,5)); 
     p.Add(new Position(1,6)); 
     p.Add(new Position(1,7)); 
     this.life = new LifeGrid(10, 10, p); 


     map = new int[,]{{1, 1, 0,},{0, 1, 1,},{1, 1, 0,},}; 

     // LayoutUpdated += new EventHandler(GamePage_LayoutUpdated); 
    } 
    /// <summary> 
    /// Allows the page to draw itself. 
    /// </summary> 
    private void OnDraw(object sender, GameTimerEventArgs e) 
    { 
     // SharedGraphicsDeviceManager.Current.GraphicsDevice.Clear(Color.CornflowerBlue); 
     // SharedGraphicsDeviceManager.Current.GraphicsDevice.Clear(Color.Black); 
     // Draw the sprite 
     spriteBatch.Begin(); 

     for (int i = 0; i <= map.GetUpperBound(0); i++) 
     { 
      for (int j = 0; j <= map.GetUpperBound(1); j++) 
      { 
       int textureId = map[i, j]; 
       if (textureId != 0) 
       { 
        Vector2 texturePosition = new Vector2(i * tileSize, j * tileSize) + position; 

        //Here you would typically index to a Texture based on the textureId. 
        spriteBatch.Draw(gridTexture, texturePosition, null, Color.White, 0, Vector2.Zero, 1.0f, SpriteEffects.None, 0f); 

       } 
      } 
     } 


     spriteBatch.End(); 
    } 

Answer 2

设置tileSize，然后在所需的网格大小上绘制纹理。

这是一些重做的代码。这是我将如何开始通过使用2d数组生成tilemap。

int tileSize = 32; 
Vector2 position = Vector2.Zero; 
Texture2D gridTexture; 

int[,] map = new int[,] 
{ 
    {1, 1, 0,}, 
    {0, 1, 1,}, 
    {1, 1, 0,}, 
}; 

然后加入这样的事情你绘制函数：

for (int i = 0; i <= map.GetUpperBound(0); i++) 
{ 
    for (int j = 0; j <= map.GetUpperBound(1); j++) 
    { 
     int textureId = map[i, j]; 
     if (textureId != 0) 
     { 
      Vector2 texturePosition = new Vector2(i * tileSize, j * tileSize) + position; 

      //Here you would typically index to a Texture based on the textureId. 
      spriteBatch.Draw(gridTexture, texturePosition, null, Color.White, 0, Vector2.Zero, 1.0f, SpriteEffects.None, 0f);    
     } 
    } 
}